Can you guys believe it's been 10years since High School Musical aired on Disney and solidified Zac Efron as a forever heartthrob? For those of you that were as obsessed with the movie as I was and wonder if the main cast actually like each other, I've got good news: They (apparently) do!

Efron celebrated his 29th birthday on October 18th and his High School Musical cast members, Ashley Tisdale (Sharpay Evans) and Monique Coleman (Taylor McKessie), took to social media to wish him a happy birthday and post some awesome throwback pictures.

High School Musical is one of Disney's biggest successes. It has spawned multiple video games, stage productions, books and two popular sequels, the third installment released theatrically in 2008 and earned over $250 million at the box office.

A fourth installment is currently in the works, with no original cast members slated to return.

Were you a fan of High School Musical and are we all, in fact, in this together?

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